Built 273, what sure grip ratio with a A833 3.09 first gear

run it with those old tall tires and the 3.55 gears, that will give u an idea about those who have suggested less rear gear like 3.23. snow tires may seem to be soft, but they put less rubber to the pavement. and ancient tires will not last long. your initial post asked about what advantage to changing rear gears-but you did not say what u are looking for - more revs, more gas mileage, quicker acceleration, what. stick with the 3.55 gears and go play with as wide a tire as possible